Dialight 5553009 LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5553009 is a 2mm red LED circuit board indicator designed for through-hole mounting applications requiring 5V operation at 1mA current. This component is classified as obsolete, making identification of compatible substitutes essential for ongoing production support and design updates. The part delivers 6 millicandela output with a 40° viewing angle and clear domed lens configuration suitable for standard PCB integration.

Substiute Parts

5553009

DialightIn Stock: 11795553009 Datasheet

Current PartRFQ

5553009F

DialightIn Stock: 15475553009F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Dialight 5553009 is determined by the following critical parameters:

Fixed Compatibility Parameters:

• Wavelength (650nm red)
• Lens configuration (clear, round with domed top)
• Physical size (2.00mm diameter)
• Mounting type (through hole)
• Voltage rating (5V)
• Viewing angle (40°)

Variable Parameters Allowing Substitution:

• Current rating (1mA baseline; higher ratings acceptable if circuit design permits)
• Millicandela output (6mcd baseline; higher brightness acceptable for equivalent or improved visibility)

The Dialight 5553009F qualifies as a direct substitute based on matching all fixed parameters while offering enhanced current capacity (10mA) and increased brightness (9mcd). This represents an active product alternative to the obsolete 5553009.

Parameter Comparison

Engineering Selection Recommendations

The Dialight 5553009F is the appropriate substitute for the obsolete 5553009 based on the following engineering criteria:

Product Status: The 5553009F is an active production component from Dialight, ensuring long-term availability and supply chain continuity compared to the obsolete 5553009.

Compliance: The 5553009F achieves ROHS3 compliance, meeting current environmental and regulatory requirements. The original 5553009 is RoHS non-compliant, making the 5553009F the preferred choice for new designs and updated production runs.

Electrical Compatibility: Both components operate at 5V with identical wavelength (650nm) and viewing angle (40°). The 5553009F's higher current rating (10mA versus 1mA) and increased brightness (9mcd versus 6mcd) are compatible with the original application when circuit design accommodates the higher current specification.

Physical Compatibility: Identical lens configuration, size (2.00mm), and through-hole mounting ensure direct PCB integration without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the 5553009F directly replace the 5553009 without circuit modifications?

A: Physical and electrical compatibility is confirmed for standard 5V indicator applications. If the original circuit was designed specifically for 1mA operation, the 5553009F's 10mA rating requires verification that current-limiting resistors or circuit design accommodate the higher current specification. Lens brightness increase (6mcd to 9mcd) is functionally compatible.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by matching wavelength (650nm), lens configuration (clear, round domed top), physical size (2.00mm), mounting type (through hole), voltage rating (5V), and viewing angle (40°). Current rating and brightness may vary within acceptable ranges for the application.

Q: Why is the 5553009F preferred over the obsolete 5553009?

A: The 5553009F is an active production component with ROHS3 compliance, ensuring regulatory alignment and supply availability. The 5553009 is obsolete and non-compliant with current environmental standards.

Q: Are there packaging differences between these parts?

A: The 5553009 is supplied in standard packaging, while the 5553009F is supplied in bulk packaging. Both are suitable for through-hole PCB assembly.

Q: What is the MSL rating for these components?

A: Both the 5553009 and 5553009F carry an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.